use hierarchical property layers to make config changes effective

immediately

owrx/config/classic.py

@@ -17,14 +17,19 @@ class ClassicConfig(PropertyReadOnly):
             except FileNotFoundError:
                 pass
 
+    @staticmethod
+    def _toLayer(dictionary: dict):
+        layer = PropertyLayer()
+        for k, v in dictionary.items():
+            if isinstance(v, dict):
+                layer[k] = ClassicConfig._toLayer(v)
+            else:
+                layer[k] = v
+        return layer
+
     @staticmethod
     def _loadPythonFile(file):
         spec = importlib.util.spec_from_file_location("config_webrx", file)
         cfg = importlib.util.module_from_spec(spec)
         spec.loader.exec_module(cfg)
-        pm = PropertyLayer()
+        return ClassicConfig._toLayer({k: v for k, v in cfg.__dict__.items() if not k.startswith("__")})
-        for name, value in cfg.__dict__.items():
-            if name.startswith("__"):
-                continue
-            pm[name] = value
-        return pm

owrx/config/defaults.py

@@ -8,7 +8,7 @@ defaultConfig = PropertyLayer(
     receiver_location="Budapest, Hungary",
     receiver_asl=200,
     receiver_admin="example@example.com",
-    receiver_gps={"lat": 47.0, "lon": 19.0},
+    receiver_gps=PropertyLayer(lat=47.0, lon=19.0),
     photo_title="Panorama of Budapest from Schönherz Zoltán Dormitory",
     photo_desc="",
     fft_fps=9,
@@ -25,7 +25,7 @@ defaultConfig = PropertyLayer(
     waterfall_scheme="GoogleTurboWaterfall",
     waterfall_min_level=-88,
     waterfall_max_level=-20,
-    waterfall_auto_level_margin={"min": 3, "max": 10, "min_range": 50},
+    waterfall_auto_level_margin=PropertyLayer(min=3, max=10, min_range=50),
     frequency_display_precision=4,
     squelch_auto_margin=10,
     nmux_memory=50,
@@ -34,7 +34,7 @@ defaultConfig = PropertyLayer(
     decoding_queue_workers=2,
     decoding_queue_length=10,
     wsjt_decoding_depth=3,
-    wsjt_decoding_depths={"jt65": 1},
+    wsjt_decoding_depths=PropertyLayer(jt65=1),
     fst4_enabled_intervals=[15, 30],
     fst4w_enabled_intervals=[120, 300],
     q65_enabled_combinations=["A30", "E120", "C60"],

owrx/config/dynamic.py

@@ -1,6 +1,7 @@
 from owrx.config.core import CoreConfig
 from owrx.config.migration import Migrator
 from owrx.property import PropertyLayer
+from owrx.jsons import Encoder
 import json
 
 
@@ -10,11 +11,24 @@ class DynamicConfig(PropertyLayer):
         try:
             with open(DynamicConfig._getSettingsFile(), "r") as f:
                 for k, v in json.load(f).items():
+                    if isinstance(v, dict):
+                        self[k] = DynamicConfig._toLayer(v)
+                    else:
                         self[k] = v
         except FileNotFoundError:
             pass
         Migrator.migrate(self)
 
+    @staticmethod
+    def _toLayer(dictionary: dict):
+        layer = PropertyLayer()
+        for k, v in dictionary.items():
+            if isinstance(v, dict):
+                layer[k] = DynamicConfig._toLayer(v)
+            else:
+                layer[k] = v
+        return layer
+
     @staticmethod
     def _getSettingsFile():
         coreConfig = CoreConfig()
@@ -22,6 +36,6 @@ class DynamicConfig(PropertyLayer):
 
     def store(self):
         # don't write directly to file to avoid corruption on exceptions
-        jsonContent = json.dumps(self.__dict__(), indent=4)
+        jsonContent = json.dumps(self.__dict__(), indent=4, cls=Encoder)
         with open(DynamicConfig._getSettingsFile(), "w") as file:
             file.write(jsonContent)

owrx/form/converter.py

@@ -1,4 +1,5 @@
 from abc import ABC, abstractmethod
+from owrx.jsons import Encoder
 import json
 
 
@@ -68,7 +69,7 @@ class EnumConverter(Converter):
 
 class JsonConverter(Converter):
     def convert_to_form(self, value):
-        return json.dumps(value)
+        return json.dumps(value, cls=Encoder)
 
     def convert_from_form(self, value):
         return json.loads(value)

owrx/jsons.py

@@ -0,0 +1,9 @@
+from owrx.property import PropertyManager
+import json
+
+
+class Encoder(json.JSONEncoder):
+    def default(self, o):
+        if isinstance(o, PropertyManager):
+            return o.__dict__()
+        return super().default(o)

owrx/property/__init__.py

@@ -53,6 +53,12 @@ class PropertyManager(ABC):
     def keys(self):
         pass
 
+    def items(self):
+        return self.__dict__().items()
+
+    def __len__(self):
+        return self.__dict__().__len__()
+
     def filter(self, *props):
         return PropertyFilter(self, *props)
 

owrx/sdr.py

@@ -19,12 +19,6 @@ class SdrService(object):
             pm = Config.get()
             featureDetector = FeatureDetector()
 
-            def loadIntoPropertyManager(dict: dict):
-                propertyManager = PropertyLayer()
-                for (name, value) in dict.items():
-                    propertyManager[name] = value
-                return propertyManager
-
             def sdrTypeAvailable(value):
                 try:
                     if not featureDetector.is_available(value["type"]):
@@ -43,11 +37,11 @@ class SdrService(object):
 
             # transform all dictionary items into PropertyManager object, filtering out unavailable ones
             SdrService.sdrProps = {
-                name: loadIntoPropertyManager(value) for (name, value) in pm["sdrs"].items() if sdrTypeAvailable(value)
+                name: value for (name, value) in pm["sdrs"].items() if sdrTypeAvailable(value)
             }
             logger.info(
                 "SDR sources loaded. Available SDRs: {0}".format(
-                    ", ".join(map(lambda x: x["name"], SdrService.sdrProps.values()))
+                    ", ".join(x["name"] for x in SdrService.sdrProps.values())
                 )
             )
 

owrx/source/__init__.py

@@ -100,7 +100,7 @@ class SdrSource(ABC):
         props = PropertyStack()
         props.addLayer(1, self.props)
         for id, p in self.props["profiles"].items():
-            props.replaceLayer(0, self._getProfilePropertyLayer(p))
+            props.replaceLayer(0, p)
             if "center_freq" not in props:
                 logger.warning('Profile "%s" does not specify a center_freq', id)
                 continue
@@ -114,15 +114,6 @@ class SdrSource(ABC):
                 if start_freq < center_freq - srh or start_freq > center_freq + srh:
                     logger.warning('start_freq for profile "%s" is out of range', id)
 
-    def _getProfilePropertyLayer(self, profile):
-        layer = PropertyLayer()
-        for (key, value) in profile.items():
-            # skip the name, that would overwrite the source name.
-            if key == "name":
-                continue
-            layer[key] = value
-        return layer
-
     def isAlwaysOn(self):
         return "always-on" in self.props and self.props["always-on"]
 
@@ -164,8 +155,7 @@ class SdrSource(ABC):
         profile = profiles[profile_id]
         self.profile_id = profile_id
 
-        layer = self._getProfilePropertyLayer(profile)
+        self.props.replaceLayer(0, profile)
-        self.props.replaceLayer(0, layer)
 
     def getId(self):
         return self.id

owrx/websocket.py

@@ -1,3 +1,4 @@
+from owrx.jsons import Encoder
 import base64
 import hashlib
 import json
@@ -106,7 +107,7 @@ class WebSocketConnection(object):
         # convenience
         if type(data) == dict:
             # allow_nan = False disallows NaN and Infinty to be encoded. Browser JSON will not parse them anyway.
-            data = json.dumps(data, allow_nan=False)
+            data = json.dumps(data, allow_nan=False, cls=Encoder)
 
         # string-type messages are sent as text frames
         if type(data) == str: